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13
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Introduction
The main focus of my current research is the modeling and analysis of distributed DC and hybrid AC-DC grids.
As part of the research project DC | hyPASim, we aim to develop a tool to aid in the simulation-based design of grids.
The tool provides a graphic user interface for easier input. This interface is developed using Python TK-Inter. The model generation, simulation and analysis is carried out in MATLAB Simulink.
Current institution
Publications
Publications (13)
In this paper, a decentralized self-stabilizing Energy Management System for undersupplied EV charging parks is presented. This undersupply is due to the maximum power demand from all charging stations connected to a common DC grid being larger than the maximum infeed power from AC mains. The EMS allows easy addition of additional participants such...
This paper investigates a generalized modeling approach for DC grid components by applying
it to the simulation and analysis of a comprehensive DC grid system. The approach has been introduced in
previous works, which discussed the overall objectives, scope of application and the modeling methodology
for switched-mode power converters. However, a s...
In this paper, the methodology for creating models of power electronic converters based on a recently presented simulation approach for LVDC grids is discussed. This analysis-use-case dependent modeling approach defines three complexity levels for the component models to be used for specific evaluation cases. The theoretical basics and conventions...
This paper proposes a simulation-based planning concept and a simulation architecture for the design of hybrid AC/DC grids, which have the potential to significantly contribute to the energy transition. The paper discusses the lack of knowledge for the design of these grids, and presents a simulation approach to efficiently design hybrid grids and...
Low-voltage direct current networks play a central role in the realization of a sustainable, resilient energy supply. The stabilization of the networks during design and operation of the grids is a particular challenge since more and more components must be included in the stability analysis and control. Therefore, it is desirable to increasingly a...
This paper proposes a simulation-based planning concept and a simulation architecture for the design of hybrid AC/DC grids, which have the potential to significantly contribute to the energy transition. The paper discusses the lack of knowledge in the market for the design of these grids, and presents a simulation approach to efficiently assemble h...
This work focuses on the differing fault behavior of non isolated electric vehicle chargers that are being sourced by a mutual DC grid, compared to an isolated system. Therefore a simulation model for a small DC grid is created. Evaluated fault scenarios are earth faults on the vehicle as well as the grid side, and parallel faults between the posit...
A dc-based low-voltage power supply offers many advantages over the historically grown ac voltage infrastructure. The paper shows the potentials for cost reduction, efficiency enhancement and equipment miniaturization through new cognitive power electronics, but also discusses the obstacles to a faster market penetration of dc microgrids. These inc...
